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A1(M) southbound traffic at 11:45 on Monday 12 October: 1 live incident (1 severe/serious).
This page tracks live A1(M) traffic southbound only — every incident, closure and roadworks National Highways publish for the southbound carriageway, updated every 5 minutes, 24 hours a day. Anything they list without naming a direction is shown here too, so nothing is missed.
Heading the other way? See A1(M) northbound traffic. The full A1(M) traffic page covers both directions, with the live map, junction-by-junction status, the latest A1(M) videos and tonight's A1(M) roadworks.
Q: Is the A1(M) southbound closed today?
No — as of 11:45 National Highways list no full closure on the A1(M) southbound. There is 1 live incident — see the board above.
Q: Are there any accidents on the A1(M) southbound today?
One live incident on the A1(M) southbound right now (1 severe or serious) — every one is on the live board above, direct from National Highways.
Q: Why is the A1(M) slow southbound today?
Nothing is listed right now — when the board above is clear, slow southbound traffic is usually rush-hour volume (07:00–09:00 and 16:30–18:30 on weekdays).
Q: Are there roadworks on the A1(M) southbound tonight?
Yes — 1 overnight closure is scheduled on the A1(M) southbound. Times and junctions are in the closures list above and on the A1(M) roadworks page.
Q: Where can I check live A1(M) traffic southbound?
Right here — this page is live A1(M) traffic for the southbound carriageway, updated every 5 minutes from National Highways, 24 hours a day. The full A1(M) page covers both directions with the live map and junction-by-junction status.
Q: Which part of the A1(M) does this page cover?
The whole southbound carriageway, end to end — the A1(M) runs between London (A1/Barnet) and Washington (A1). The northbound side has its own page.
Daily A1(M) incidents, posted across all four channels.
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